In the blink of an eye, it has been eleven years since the new era on Earth, and nearly twelve years have passed since the end of the war between the Gaia civilization and the Earth civilization.

Twelve years, this is not a short time, enough for a new generation of people to grow up rapidly during this time, and the earth of the new era is the same, twelve years of stable and rapid development, the earthlings have completely erased the wounds of the war that year, showing a thriving scene.

The first president of the Earth Federation government stepped down from his post last year, and the first president, who was destined to leave a mark on human history, finally retired from the presidency at the end of his second term. And an Asian who succeeded him as the third president, or to be precise, a "Chinese", but for more than ten years, the concept of the earth for the once countries has been basically diluted, with the prosperity of the Earth Federation, coupled with the various conveniences and superior life brought by the development of science and technology for human beings, the country has long been replaced by the current Earth Federation in the minds of all earthlings.

Compared with the first president, the new president's means are more moderate, of course, this is also the result of the needs of history, after all, the current earth federation has been solidified, the federal government has long been deeply rooted in the hearts of the people, those national separatists who tried to subvert the government have already been wiped out under the iron fist of the first president, and with the development of society and the needs of the government, the president's primary work direction adjustment is also an inevitable result.

Meng Lin sat in the driverless car, his eyes staring at the scene that was speeding by on both sides, surrounded by picturesque scenery. Since the rebuilding of the earth, the Federal Academy of Sciences has made careful plans for the protection and development of the environment of the earth's homeland, and the federal government has also done the same in the course of its governance, for 12 years. Nowadays, the ecology of the earth has been restored to a very good environment, even ordinary citizens can enjoy natural and beautiful living conditions, and those metropolises that were crowded like reinforced concrete forests in the early days are now gone, replaced by beautiful buildings hidden in the beautiful scenery and harmonious in front of them.

Over the course of twelve years, the Earth's population has begun to recover after a drastic decline, albeit at a staggering rate. In just twelve years, the total population of the planet has almost returned to its pre-war level. However, with the development of science and technology, coupled with the implementation of the policies of the Earth Federation, the current earth is not as crowded as it seemed back then, especially in the former pre-war metropolis where Meng Lin is now, it was absolutely impossible to drive a car without obstacles like now.

On the one hand, it is the result of the balanced adjustment of the population in the world, and the second is also because of the development of science and technology, unmanned cars are directly controlled and dispatched by the central brain of the city, as long as the passengers sit in the unmanned car. With the input of the destination, the data will be received by the central brain synchronously, and then automatically deployed according to the road conditions and driving speed, so as to quickly arrive at the destination in the shortest and most convenient time, so as to avoid the previous congestion.

Another important reason is that although the total population of the Earth has recovered to the pre-war level, the current population on the Earth is only 70% of the total population, and the other 30% of the population lives on the Moon or Pluto bases. Even newly developed Martian bases, and with the development of Mars accelerated. Human beings have preliminarily completed the construction of Mars into a new living planet, so that it has the same ecological environment as the earth.

Moreover, as human beings enter the cosmic civilization, human exploration of the universe has become more and more intense. This is especially true for the new generation of teenagers who have grown up and left Earth for Mars to enjoy a different "extraterrestrial" life from Earth. This is also a great temptation for people of other ages.

What's more, the federal government is currently encouraging people on Earth to explore and build on other planets, further promoting this phenomenon. Therefore, the actual proportion of the earth's population is declining year by year, coupled with the development of the earth's resources and technology. The living standards and comfort of human beings on the planet are also constantly improving.

Everything around has completely changed, this city Meng Lin has been here for more than ten years, and now he can't find the slightest shadow of his familiarity, although there are beautiful communities and picturesque scenery everywhere, but in Meng Lin's eyes, there is inevitably a trace of regret.

Meng Lin just returned to Earth last month, and since he followed Su Yichen and others to the Pluto base many years ago, he has stayed at the Pluto base for more than ten years.

Not only that, Meng Lin also became a relative on Pluto six years ago, became a father five years ago, and now has two sons, it can be said that compared to the already unfamiliar earth, Pluto has become Meng Lin's real home. And this time to return to Earth is a transfer of work of the Federal Academy of Sciences, considering that Meng Lin and his wife have worked on Pluto for such a long time, and even their children have never returned to Earth, the Federal Academy of Sciences specially transferred them back.

The children who grew up on Pluto since birth have only the concept of the earth in their parents' mouths, and when they return to the earth, the scenery that is completely different from Pluto quickly attracted them and made the children excited.

As for Meng Lin and his wife, the Federal Academy of Sciences arranged a very good home for them in this city, and at the same time gave them a full month of vacation, firstly, to accompany the children who returned to Earth for the first time, and secondly, to refamiliarize themselves with this earth, which had become unfamiliar to them.

However, Meng Lin is a person who can't be idle, he can bear a short-term vacation, and a long time of idleness makes him feel that his body is rusting a little bit and uncomfortable. Accompanying his wife and children to walk around, it didn't take long for Meng Lin to get a little bored, after his several requests, the Federal Academy of Sciences quickly rearranged a new job for him, his wife went to the research institute under the Academy of Sciences, and Meng Lin was arranged to work in the branch of the Federal Academy of Sciences in this city, and today was the first day he went to report.

The unmanned car soon arrived at his destination, the branch of the Federal Academy of Sciences of Earth, which currently has a total of five branches of the Federal Academy of Sciences, and this is one of them.

The car automatically and smoothly stopped at the designated berth and got out of the car. Meng Lin clicked on the portable brain on his wrist, and a three-dimensional structure diagram of the branch of the Academy of Sciences instantly appeared in front of him, looking up at the branch gate not far away, Meng Lin looked at the location of the office where he was going to report, and then closed the brain and strode towards the door.

The branch of the Federal Academy of Sciences is not guarded by any guards. The gate is empty, surrounded by green woods and large lawns, but it would be a big mistake to think that this is a place where you can come and go freely, because since before the departure of unmanned cars, the city's central brain has been connected to the brain system of the Academy of Sciences, and has made a detailed record for visitors. Even, the moment Meng Lin arrived, the intelligent brain system of the Academy of Sciences scanned the visitor's information from all directions, and once the problem was found. Soon defense robots, including armed guards from the Academy of Sciences, appeared.

Directly into the door, following the route in his memory, Meng Lin went up to the third floor, and soon found where he was going. knocked on the door, and a steady middle-aged man's answer came from inside the door, and he pushed the door in, only to see a man sitting at his desk busy.

"Dr. Meng?" The other party temporarily put down the documents in his hand, stood up with a smile on his face, walked a few steps in front of Meng Lin and stretched out his hand and said, "I thought you would come to report in a few days." I didn't expect it to come so quickly, sit down. ”

"Hello Dean Tang. It's been a few days since I came back, and the courtyard has given me a good rest, but you also know how people who do our business can be idle? Meng Lin smiled and shook hands with Tang Wei, and at the same time explained briefly.

Tang Wei smiled and nodded: "That's right, that's right, in fact, it was the same when I first came back, and I couldn't be idle." ”

"Dean Tang also came back from the base?" Meng Lin asked in some surprise. As the old man of the Pluto base, Meng Lin has been in the Pluto base for a long time, and it can be said that he is one of the people in the Pluto base for the longest time. However, he didn't find any information about Tang Wei in his memory, unless Tang Wei was Pluto, who had only been there recently. Judging from Tang Wei's position in the Academy of Sciences, even if he hasn't seen him, he should have heard of it.

Tang Wei knew that he had misunderstood when he saw Meng Lin's expression, and replied with a smile that he was not at the Pluto base before, but at the moon base.

"Lunar base?" This surprised Meng Lin a little, because the moon base was the headquarters of the space fleet, and as far as he knew, Tang Wei was a very well-known scholar, how did he go back to the moon base? Could it be that he was in charge of the military's scientific research before?

"Tea or coffee?" Tang Wei didn't explain immediately, but asked him what he wanted to drink.

Meng Lin asked for a cup of tea, although now such a small job as making tea has long been replaced by household robots, but Tang Wei is obviously a nostalgic person, he personally walked to the side to boil water to make tea, and after a while, a pot of good tea was served.

"Try this white tea, it was given by an old friend, it's very good." After making a cup of tea for Meng Lin, Tang Wei said with a smile.

After tasting it, this white tea is indeed good, although there is a perfect ecological balance circle in the Pluto base, but if you want to drink such a good tea, you still have to be on the earth, which Meng Lin deeply believes.

"I used to work at Earth Alliance HQ and was a colleague of Dr. Elena." After taking a sip of tea, Tang Wei explained.

Hearing this, Meng Lin suddenly realized that the Earth Alliance back then was later called the predecessor of the Earth Federation today, but in fact, those who had experienced the years knew that there was a huge difference between the two. The Earth Alliance is an alliance organization temporarily established to resist the Gaia civilization that invaded the earth, and its organizational structure is mainly based on the United Nations as the main body, absorbing personnel from various government agencies, including some scientists and scholars.

However, this Earth Alliance existed in name only after the outbreak of the war, and the scientific research institutions affiliated with the Earth Alliance were also completely destroyed in the war, and later after the establishment of the Earth Federation, most of the people who belonged to the Earth Alliance in the early years entered the federal institutions to work, and the scientists of its scientific research institutions were also absorbed into the Federal Academy of Sciences.

The most famous of these scientists belonged to Dr. Elena, a beautiful and charismatic lady known as the goddess of astrophysics who is now the vice-president and committee member of the Federal Academy of Sciences, and if nothing else, she may become the first female president of the Federal Academy of Sciences.

In the war between the Earth civilization and the Gaia civilization, Dr. Elena suffered a lot, and was even captured by the Gaia civilization. Because after the start of the war of the Earth Alliance, Dr. Elena was sent to the headquarters of the Moon Base as a distinguished astrophysicist to assist the fleet in defending the Earth. Unexpectedly, the attack power of the Gaia civilization was so powerful, and the space fleet built by the earth civilization was almost completely wiped out in a short period of time, the highest commander of the fleet committed suicide, and the moon base was forced to surrender.

After the end of the war, the personnel of the moon base regained their freedom, and as defeated and captives, these survivors were not discriminated against, but were regarded by the federal government as the most heroic figures of humanity on Earth. The most famous of these is Dr. Elena, who is admired and respected by many.

Unexpectedly, Tang Wei, who was sitting in front of him, was also one of those people back then, and even a colleague of Dr. Elena, which surprised Meng Lin. However, Tang Wei looks like a middle-aged man, if calculated according to the time at that time, his age should not be small. This is also normal for the current earth, with the development of science and technology, human life has begun to improve significantly, according to the current medical point of view, the average life of ordinary people is more than 120 years old has no problem, if you add transplant technology, even if you live to 150 years old, it is possible, and hibernation technology is becoming more and more mature, if there is a condition for hibernation, then life continues for hundreds or even thousands of years theoretically there is no problem.

In addition, Meng Lin also knows better than ordinary people that there is a set of life-supporting equipment in the Pluto base, and this unique life-supporting equipment can even break the limitations of human life, so as to make human beings "rejuvenate". Of course, this is the top secret of the Earth Federation, and the number of people who can use this set of equipment every year is extremely limited, at least until human science completely deciphers the mysteries of life, for it ordinary people are just a luxury.

Tang Wei is a more talkative person, he and Meng Lin chatted about the helpless and even desperate experience in the lunar base, which made Meng Lin very embarrassed, and Meng Lin also talked about some of the things he worked on Pluto, the two are engaged in scientific research, and they have a common language with each other, and even chatted for a while before they were surprised to find that they had lived in the same city as each other, and from this point of view, the two sides were actually fellow countrymen. (To be continued......)